Adjustable drop-light attachment.



F. K. BARTHOLOMEW. ADJUSTABLE DROP LIGHT ATTACHMENT.

APPLIOATION FILED MAR. 17, 1909.

Patented Jan.25,1910.

INVENTOR FLEURYI K. BARTHOLQMEW.

Hi5 ATTORNEY.

FLEURY K. BARTHOLQMEW, 0F CAMPBELL. CALIFORNIA.

ADJUSTABLE DROP-LIGHT ATTACHMENT.

TMLTWWHP.

Specification of LettersPatent.

Patented Jan. 25, T1910.

Application filed March 17, 1909. Serial No. 483,915;

* To ail whom it may concern.-

Be it known that I, FLEURY K. BARTHOLO- new, citizen of the UnitedStates,-- residing simple, cheap, practical drop-light attachment forany ordinary gas fixture or chandelier, by which the light may beadjusted to any desired position, which attachment can be applied to anyvertical or horizontal support, and which, furthermore, will besufiiciently rigid to sustain the suspended parts.

The invention consists of the parts and the construction and combinationof parts as hereinafter more fully described and claimed, havingreference to-the accompanying drawings, in which- Figure 1 is anelevational View of the invention. Fig. 2 is a detailed view partly insection of the adjustment. Fig. 3 is a perspective view of the clamp asattached to a vertical support. Fig. 4 shows the clamp attached to ahorizontal support.

In the embodiment of my invention, I employ a sleeve member A ofsuitable length and any desired description, through which the slidinggas pipe 2 passes. The sleeve A carries a spaced double packing ofsuitable description to form a tight sliding joint with the gas pipe 2,whereby the pipe 2 and the burner 3 which it is designed to carry may beslid up and down in the sleeve and suitably supported at any height whenthe sleeve is properly secured to some convenient fixed support.

The sleeve which may be of any suitable size pipe, is here shown ascarrying a threaded collar 4 at each end, over which a packin gland 5 isscrewed, this gland, being adapte to compress the packing 6 around thegas pipe 2 and up against the end of the sleeve pipe A to form a jointof any desired stiffness. Each end of the sleeve A is provided with asimilar packing, and by making the sleeve of suflicient length andproviding this double packing, as shown, it will be manifest that astiff grip is had on the drop pipe 2, and at suitable distances apart,and all carried by a. single member, to-wit, the sleeve A;

consequently, if the sleeve A is firmly held in position, the drop-lightattachment will be quite rigid and not liable to vibration.

Any suitable means may be employed to support the sleeve and drop-lightin operative posit-ion. As here shown, I employ a special type of clampby which the sleeve quay be secured either to the vertical gas pipe 7 ofthe chandelier, or to one or other of the horizontal pipes 8; this clampbeing made in two parts 9 and 10 pivoted together at 11, with one of theparts, as 9, clamped to the sleeve A, and the other part, as 10,

clamped by suitable means, as the screw 12, y

to a pipe 7 or 8, or equivalent support.

Tfthe clamp is to be secured to a vertical pipe, as 7, as here shown,the clamp members 9 and 10 stand in line and are kept from turning bysuitably corrugating the contiguous surfaces of the members 9 and 10.

If the drop-light is to be hung from a horizontal gas pipe, or wallfixture or the like, the clamp member 10 is simply turned down at rightangles to the member -9, and the two parts locked in fixed angularposition by means of the screw 11.

The drop gas pipe 2 is suitably connected with the gas supply, as bymeans of the-flexible rubber tubing 13.

One main feature of the invention is the use of the guide sleeve A withthe packing 5 at each end, whereby rigidity is given to the dropfixture, but without interfering with the proper vertical adjustments ofthe latter. The other feature is the adjustable clamp 910.

When the stufling-boxes 5 have beeiradjusted to the required tension,the drop-light may be moved up or down or turned sidewise to anyposition, and the friction of the packing will hold the lamp at thedesired level.

It is manifest or possible that the construction herein specified may bevaried without departing from the principle of the invention, and Idesire it to be understood that the inventionis not limited to any.specific form or arrangement of parts, except in so far as suchlimitations or their mechanical equivalents are specified in the claim.

Having thus described my invention, what I claim and desire to secure byLetters Patent is- The combination with a chandelier, of a drop lightattachment comprising a sleeve threaded at its oppositeends, a pipepassing through the sleeve, a packing at each end of I carried by thesleeve and adapted to supthe sleeve extending beyond the same and portthe same from the gas fixture; embracing the pipe, and screw glandsfitting In testimony whereof I have hereunto set over the pipe andinclosing the packings and I my hand in presence of two subscribing 5adapted to screwfinilzlo enlgagemerlilt with the Witnesses.

0 osite ends 0 t e s eeve w ere y the I 1 r pggkings are compressedaround the pipel ILLUR'Y BARTHOLOMLW' and the pipe is held at two widelyseparated i Witnesses: points, flexible connections between said J. J.CORNELL, 10 pipe and a gas jet and-an adjustable bracket HARLOW M.PLIUPTON.

